
Resideo VU844A1003 Actuator
The Resideo VU844A1003 Actuator is a heavy-duty 24Vac fan coil actuator engineered for precise control in hydronic systems. Designed for two-position SPST operation, this motor provides a 45-degree stroke to manage flow through compatible valve bodies. Built for longevity in demanding environments, it features a stainless steel case and a durable aluminum cover, protecting the internal spring return mechanism. This spring return actuator ensures the valve returns to its normal position during power loss, with a fast 6-second return timing and a 15-second energized drive timing. The 6-inch electrical lead simplifies wiring in tight mechanical Closets. Often required for Resideo zone valve replacement, this unit integrates seamlessly with VU52 series 2-way normally open valve bodies or VU54 series 3-way valves. Contractors rely on the VU844A1003 for its robust low-voltage performance and field-proven reliability in hydronic HVAC systems and multi-family terminal unit applications.
Key Benefits for the Contractor- System Reliability: The fail-safe spring return ensures the system reverts to a safe state during power interruptions.
- Durable Construction: The stainless steel housing resists corrosion and mechanical wear in high-humidity fan coil environments.
- Broad Compatibility: Specifically engineered for VU52 and VU54 valve bodies, ensuring a perfect mechanical fit and proper torque.
- Efficient Install: The 24V fan coil motor design allows for quick integration into existing low-voltage control circuits.
- Rapid Response: Optimized timing of 15 seconds (power) and 6 seconds (spring) prevents water hammer while maintaining climate control precision.
Is the VU844A1003 compatible with VU53 series valves?
This actuator is specifically designed for VU52 2-way normally open and VU54 3-way valve bodies. Always verify the valve series and action before installation to ensure proper flow control.
What is the power requirement for this unit?
The unit operates on 24Vac power. Ensure the transformer is appropriately sized for the VA draw of the entire zone system to prevent voltage drops.
Can the motor be replaced without draining the system?
Yes, the VU844A1003 actuator can be removed and replaced without breaking the line pressure, provided the valve body remains intact, significantly reducing service time.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $83.87
-65%$83.87
$29.35Resideo VU844A1003 Actuator
The Resideo VU844A1003 Actuator is a heavy-duty 24Vac fan coil actuator engineered for precise control in hydronic systems. Designed for two-position SPST operation, this motor provides a 45-degree stroke to manage flow through compatible valve bodies. Built for longevity in demanding environments, it features a stainless steel case and a durable aluminum cover, protecting the internal spring return mechanism. This spring return actuator ensures the valve returns to its normal position during power loss, with a fast 6-second return timing and a 15-second energized drive timing. The 6-inch electrical lead simplifies wiring in tight mechanical Closets. Often required for Resideo zone valve replacement, this unit integrates seamlessly with VU52 series 2-way normally open valve bodies or VU54 series 3-way valves. Contractors rely on the VU844A1003 for its robust low-voltage performance and field-proven reliability in hydronic HVAC systems and multi-family terminal unit applications.
Key Benefits for the Contractor- System Reliability: The fail-safe spring return ensures the system reverts to a safe state during power interruptions.
- Durable Construction: The stainless steel housing resists corrosion and mechanical wear in high-humidity fan coil environments.
- Broad Compatibility: Specifically engineered for VU52 and VU54 valve bodies, ensuring a perfect mechanical fit and proper torque.
- Efficient Install: The 24V fan coil motor design allows for quick integration into existing low-voltage control circuits.
- Rapid Response: Optimized timing of 15 seconds (power) and 6 seconds (spring) prevents water hammer while maintaining climate control precision.
Is the VU844A1003 compatible with VU53 series valves?
This actuator is specifically designed for VU52 2-way normally open and VU54 3-way valve bodies. Always verify the valve series and action before installation to ensure proper flow control.
What is the power requirement for this unit?
The unit operates on 24Vac power. Ensure the transformer is appropriately sized for the VA draw of the entire zone system to prevent voltage drops.
Can the motor be replaced without draining the system?
Yes, the VU844A1003 actuator can be removed and replaced without breaking the line pressure, provided the valve body remains intact, significantly reducing service time.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
The Resideo VU844A1003 Actuator is a heavy-duty 24Vac fan coil actuator engineered for precise control in hydronic systems. Designed for two-position SPST operation, this motor provides a 45-degree stroke to manage flow through compatible valve bodies. Built for longevity in demanding environments, it features a stainless steel case and a durable aluminum cover, protecting the internal spring return mechanism. This spring return actuator ensures the valve returns to its normal position during power loss, with a fast 6-second return timing and a 15-second energized drive timing. The 6-inch electrical lead simplifies wiring in tight mechanical Closets. Often required for Resideo zone valve replacement, this unit integrates seamlessly with VU52 series 2-way normally open valve bodies or VU54 series 3-way valves. Contractors rely on the VU844A1003 for its robust low-voltage performance and field-proven reliability in hydronic HVAC systems and multi-family terminal unit applications.
Key Benefits for the Contractor- System Reliability: The fail-safe spring return ensures the system reverts to a safe state during power interruptions.
- Durable Construction: The stainless steel housing resists corrosion and mechanical wear in high-humidity fan coil environments.
- Broad Compatibility: Specifically engineered for VU52 and VU54 valve bodies, ensuring a perfect mechanical fit and proper torque.
- Efficient Install: The 24V fan coil motor design allows for quick integration into existing low-voltage control circuits.
- Rapid Response: Optimized timing of 15 seconds (power) and 6 seconds (spring) prevents water hammer while maintaining climate control precision.
Is the VU844A1003 compatible with VU53 series valves?
This actuator is specifically designed for VU52 2-way normally open and VU54 3-way valve bodies. Always verify the valve series and action before installation to ensure proper flow control.
What is the power requirement for this unit?
The unit operates on 24Vac power. Ensure the transformer is appropriately sized for the VA draw of the entire zone system to prevent voltage drops.
Can the motor be replaced without draining the system?
Yes, the VU844A1003 actuator can be removed and replaced without breaking the line pressure, provided the valve body remains intact, significantly reducing service time.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












